Hoop-coupling



W. ROSS.

H00? COUPLING.

awucumu HLED JUNE 25. 1920.

1,880,927, Patented June 7, 1921.

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H0 OP-GOUIPIJNG.

Specification of Letters latent.

Patented J H116 7, 1921.

Application filed June 28, 1920. Serial no. 392,411.

T 0 all whom it may concern:

Be it known that I, WiLLIAM Ross, a subject of the King of Great Britainand Ireland, residing at Cleveland, in the county of Cuyahoga and Stateof Ohio, have invented a certain new and useful Improvement inHoop-Couplings, of which the following is a full, clear, and exactdescription,

the rod are drawn toward each other, the

center line of the rod will always be in a medial plane.

Another object of my invention is to have such a coupling exert acontracting force on the staves immediately thereunder, which is uniformwith the force exerted by the hoop rod upon the other stave members.

A further object of the present invention is to produce a coupling thatcan be forged readily and economically from a metallic stri F hr anillustration of one of the forms my invention may take,'referenc e is tobe had to the accompanying drawings, in which: Figure 1 is a view of awooden tank with couplings shown in place on the tank; Fig. 2 is anenlarged view of a section of the edge of such a tank as is shown inFig. 1; Fig. 3 is a side elevation of the forged member of the coupling,while Fig. 4 is a section taken along the line 44'of Fig. 3. 7

Referring to Fig. 2, 4 is. a metal strip of rectilinear cross sectionwith the looped shoulders bent in it, each to form anchors or terminalsfor the threaded end 9 of the hoop rod 11. Holes of the proper diameterare formed in both shoulders. By having the shoulders for ed in a U orlooped form as shown at 8, 2, the force exerted on the faces of theshoulders when the nut 12 is tightened on the rod 11 is distributedthrough both sides of the coupling and is reacted along the face of thecoupling at 13 and 14. The side of the shoulder 3 which takes the pullof the rod 11 is reinforced by the outward side of the loop 10 which isalso braced by the outwardly extending portion 21. If any bending takesplace at the point 16 of the strip, a partial Wedging action likewisetakes place between the rod and coupling at the point 15, which willalso facilitate in distributing the force exerted by the rod upon thecoupling and prevent the shoulder from further bending at point 16.

By having the outwardly extending portion 21 of the coupling flared andtapered as shown at 17 and 18,Fig. 3, greater contact surface with thewood is provided and any tendency the edge 20 may have to mar thesurface of the tank is greatly decreased.

. From the foregoing description it can be seen that I have invented 'acoupling which can be forged economically from one piece of metal. Alsoby forging looped or U shaped shoulders in a metal strip I can produceacoupling with a minimum weight of metal that will have the requisitestrength of a stave tightener. Likewise the center line of the hoop rodis always maintained in a medial plane.

Having thus described my invention, I claim:

1. The combination with a circular wall and a hoop therefor, of acoupling compris ing a forged -metallic member, U-shaped shoulders benttherein, with opposing faces and holes in said shoulders through whichthe threaded ends of the hoop pass, said hoop ends being engaged by nutswhich bear upon said shoulder faces.

2. The combination with a circular wall, of a yieldable hoop comprisinga metallic strip doubled on itself in two regions to pro vide outwardlyprojecting shoulders, a hoop having its ends movably attached to saidshoulders and portions on said coupling beyond said shoulders engagingsaid wall and adapted to receive the strain when pull is exerted on saidshoulder by the hoop and to distribute it along the end portion of thecoupling in contact with the wall.

3. The combination with a circular staved wall anda hoop therefor, of acoupling comprising a forged metallic member having looped shouldersbent therein, and tapered and flared extensions from said shoulder loopsat the ends of the coupling.

4. The combination with a circular staved wall and a hoop therefor, ofan arcuate metallic hoop coupling with outwardly projecting U-shapedportions, providing shoulders, the faces of which are normal to thecircular staved wall and transverse of the strip.

5. The combination with a circular wall and a hoop therefor, of anarcuate coupling,

said coupling having looped shoulders formed therein and proportioned toyield slightly and thereby distribute the force along the arcuateportion of the coupling in contact with the circular wall.

6. A metallic hoop coupling, comprising a one-piece strip of arcuateform, providing a stave bearing portion on one face, and having U-shapedportions bent up from said face to form shoulders, whereby gaps areformed in said bearing face longitudinally thereof.

7. The combination with a circular staved wall and a hoop therefor lyingin a single plane, of a coupling comprising a forged metallic strip,U-shaped shoulders bent therein having opposing faces and holes locatedin said shoulders in the plane of the hoop, the terminals of said hoopextending through said holes.

8. In a forged hoop coupling, a face por-' tion adapted to contact witha stave wall,

U-shaped portions projecting outwardly therefrom providing shoulderswith opposing faces, said faces beingnormal to the stave contact portionof the coupling whereby a gap is formed in said portion. 7 7

9. In an arcuate metallic hoop coupling,

U-shaped shoulders forged therein and providing gaps in the face of saidcoupling and arcua'te portions extending therefrom and adapted to seaton a stave wall.

, 10. In an arcuate metallic hoop coupling, looped shoulders forgedtherein and tapered and flared portions on the ends of said couplin andextending outwardly from said shoiilders.

11. A metallic hoop coupling, comprised of a one-piece forged metallicstrip, said strip having outwardly projecting U-shaped portions forgedtherein and tapered and flared extensions from said shoulders on thesides of said shoulders adjacent the ends of the coupling respectively.

12. An arcuate metallic hoop coupling, comprising a one-piece forging,outwardly projecting U-shaped shoulders bent therein, and registeringholes formed in the side face of said shoulders.

13. An arcuate metallic hoop coupling, comprising a one-piece forging,outwardly projecting U-shaped shoulders bent therein, holes formed insaid'shoulders, and arcuate portions tapered and flared outwardly fromsaid shoulders.

14. An arcuate metallic hoop coupling, comprising a one-piece forging,outwardly projecting U-shaped shoulders with opposing faces normal tothe stave contact portion of the coupling, holes formed in saidshoulders, and arcuate portions tapered and flared outwardlyfrom saidshoulders.

15. An arcuate metallic coupling, comprising a one-piece forging,outwardly projecting U-shaped shoulders with opposing faces, anintermediate arcuate strip between the shoulders, and arcuate portionsadjacent to and extending from said shoulders, said portions beingtapered and flared toward the ends of the same.

In testimony whereof, I hereunto afix my signature.

WILLIAM ROSS.

